Lindsay Lohan is calling BS on a hookah lounge manager, who claims the actress injured his knee when she allegedly grazed him with her Porsche last night -- insisting, "This is all a complete lie."
Lindsay took to her Twitter account moments ago to blast the allegation -- writing, "Scrape? This is all a complete lie. I've been at community service. Last night, I attempted to wish a friend happy birthday, which I didn't even get to do because I was freaked out by all of the paparazzi."
Lindsay insists, "These false accusations are absurd."
A rep for Lindsay adds, "At no point was there ever any indication that her car hit anyone or anything. We are confident this matter will be cleared up in the next few days."